Wear-compensating means for connecting-rod bearings



Sept. 23, 1930. c. H. RUBY 1,776,639

WEAR COMPENSATING MEANS FOR CONNECTING ROD BEARINGS Filed April 25, 1929Inventor Attorney rats eas tzs, 1930 f p 1 7765,

UNITED STATES PATENT OFFICZE CHARLES H. Runner sr. rE'r'ERsBune, rnonina1 i I WEAR-COMPENSATING MEANS Fort ,ooNn'ncTme-non nnanliies 1Application filed April 25, 1929. Sea N5. 358m i I The present inventionrelates to improve- This bushing 9 is clearly showniii ments in wearcompensator-s and more parande and is reduced circu 'nierentially at itsticularly the invention has. reference to novel intermediacy as atdlO,and at this point p1-owear compensating means for the bearings of vldedwith.cn'cumferentially spaced openlngs 5 connectingrods, especiallythose employed llthrough whichfa lubricantmay flow. i 55. for connectingthe pistons of internal com- 7 The aw members i on the bearing; 6bustlon enginesto the usual crank shaft. are provided with register ngbores, one of The primary object of the invention is to which isthreaded to receivelthe threaded'end provide a wear compensator whichmay be portionl of the bolt 13 which bolt is re i actuated to take upwear or clearance between duced at its intermediate portion 1 1. The tothe usual wrist pin and bushings. bolt is threadable into the threadedbore in- V Another important object of the invention the manner shown inFig.1, for tightening is to provide novel means for adjusting the thejawmembers against the shim l5 inter- -wrist pin bearing withoutremoving the pisposed. The shim 15 is in the form of a block 15 .ton.provided with a cut-out portion 16 to'accom- These and-other importantobjects ofthe modate the reduced intermediacy of the invention will,become more apparent to the bolt 18. reader after considering theinvention as de- 1 The bolt 13 is adapted to pass through the scribedand claimed hereinafter. enlarged leg portion 17 of an L-shaped shim Inthe drawings I securing member 18, the free end of the re- 70 V Figure 1represents apartial vertical secmaining leg of the member, beingdisposed tional View through a piston and wrist pin Over the shim 15 insubstantially the manner bearing structure. shown in Fig.1.

Fig. 2 represents an edge. elevation of a The plate 19 is suitablysecured to the enshim employed in the novel compensator. larged legportion of the member 18 and is 75 Fig. 3 represents a side elevation ofthe provided with a plurality of radiating lugs shim. 20 capable ofbeing bent for disposition Fig, 3 r r nt a id levation f th against theflat sides of the polygonal head lubricating bushing. Y 21 of the bolt13.

Fig. 4; represents a longitudinal sectional The bolt is disposed in themanner shown 8% View through the bushing taken substantially 111 Fig. 1,so that by engaging a suitable tool on the line 4.t of Fig. 3 upwardlywithin the skirt portion of the pis- Fig. 5 represents an end elevationof the 11, (referred to by the numeral 22), the bushing. bolt may beloosened to permit the removal Fig; 6 repr sents a side elevation f theof the slum for reducing the thickness of shim securing member. shim orshims where they are of the lami- Fig. 7 represents an edge elevation ofthe ed or OCk type. shim securing member, V i It Wlll thus be seen thatthe present inven- R f rrin to th d a i g h i lik tion presents a simpleyet convenient type of numerals designate like parts, it will be seen rco pe sator f r he usual Wrist pin that the usual connecting. rod isdesignated fi g 0 GOnI18 Ct1I 1g QlS, a d although the by numeral 5 andis provided at its upper end foregoing dQSCIIIJtIOH has been in specificwith the usual split bearing construction 6, terms, t 18 be 6 t00Cl thatVenous hi h i l d th ja extensions 7 7 changes in the specific shape,size, materials These jaws are contractible to a certain exmay beresorted to without departing fr m 9 tent to permit contraction of thebore through the spirit and scope of the invention as the bearing 6 incompensating for wear. Nuclaimed hereinafter. meral 8 designates theusual wrist pin; be- Having thus described my invention, what tween thewrist pinand the bearing 6, is in- I claim as new is 50 terposed thebushing 9. 1. A wear compensator for'connecting rod bearings of thesplit feed type; a threaded bolt for feeding the jaw portions of thebearings together, a bushing for disposition within the bearing, andagainst which the bearing is adapted to clamp, a shim for dispositionbetween said jaw portions, means for securing the shim againstdisplacement, said means'consisting of a plate having an opening thereinfor receiving the bolt, and a tongue projecting from the plate for tensional engagement against the shim,

'2. Adjustable means for split clamp type bearings wherein a screw isemployed for feeding the jaw portions toward or away fromeach other; aU-shaped shim for disposition between the jaw portions of the bearingsand in straddled relation with respect to the screw, an annular elementfor receiving the screw and an elongated spring arm projecting from theannular element for tensionally engaging the bight portion of the saidshim at its free end.

In testimony whereof I aflixmy signature.

7 CHARLES H. RUBY.

